-/* looks the key up in the cdrs of the alist-keys
- - ignoring the car and ignoring non-pair keys.
- Returns first match found, i.e.
-
- alist = ((1 . 10)
- ((1 . 2) . 11)
- ((2 . 1) . 12)
- ((3 . 0) . 13)
- ((4 . 1) . 14) )
-
- I would like (ly_assoc_cdr 1) to return 12 - because it's the first
- element with the cdr of the key = 1. In other words (alloc_cdr key)
- corresponds to call
-
- (alloc (anything . key))
-*/
-SCM
-ly_assoc_cdr (SCM key, SCM alist)
-{
- if (scm_is_pair (alist))
- {
- SCM trykey = scm_caar (alist);
- if (scm_is_pair (trykey)
- && to_boolean (scm_equal_p (key, scm_cdr (trykey))))
- return scm_car (alist);
- return ly_assoc_cdr (key, scm_cdr (alist));
- }
- return SCM_BOOL_F;
-}
-
-